When the attendants bend down to get food from the trolley, skin is exposed, they claim.

Flight Attendants Union honorary secretary Michelle Choi told the newspaper: "We believe the company intentionally does this to make us look a bit sexier and to let the passenger see more."

The airline introduced the uniforms in 2011. At the time, the airline said the uniforms were reflective of the "airline’s progressive nature." The FAU also thinks the skirts are too tight.

Choi said she believed the too-revealing uniforms were contributing to an apparent rise in incidents of sexual harassment of cabin crew by passengers, which she now estimates to affect each cabin crew member on one in every 10 flights.

In a statement to the newspaper, Cathay Pacific said: "Crew are welcome to exchange their uniform any time if they feel the fit is not right." The airline also said it "does not tolerate" any form of harassment.

The uniform took two years to develop and a wearer trial was conducted over a six-week period to ensure the new uniform is practical and functional for staff, the airline said at the time the new uniform was introduced.